1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mariulka [41]
3 years ago
5

A 0.311 kg tennis racket moving 30.3 m/s east makes an elastic collision with a 0.0570 kg ball moving 19.2 m/s west. Find the ve

locity of the tennis racket after the collision.

Mathematics
1 answer:
max2010maxim [7]3 years ago
5 0

<u>Answer</u>:

The velocity of the tennis racket after the collision 14.966 m/s.

<u>Step-by-step explanation:</u>

An elastic collision is an encounter between two bodies in which the total kinetic energy of the two bodies remains the same.

So, the total kinetic energy before collision = the total kinetic energy after collision.

For the given problem let the following:

m₁ = mass of tennis racket = 0.311 kg

m₂ = mass of the ball = 0.057 kg

u₁ = velocity of tennis racket before collision = 30.3 m/s

u₂ = velocity of the ball before collision = -19.2 m/s

v₁ = velocity of tennis racket after collision

v₂ = velocity of the ball after collision

Right ⇒east  (+) , Left⇒ west (-)

v₁ = [ u₁ * (m₁ - m₂) + u₂ * 2m₂ ]/ (m₁ + m₂)

  = ( 30.3 * (0.311 - 0.057) - 19.2 * 2 * 0.057 ) / ( 0.311 + 0.057)

  = 14.966 m/s.

So, the velocity of the tennis racket after the collision 14.966 m/s.

You might be interested in
Is 3 1/4 closer to 3 or 4<br><br><br>is 3 3/5 closer to 3 or 4​
agasfer [191]

Answer:3 and 1/4 is closer to 3 and 3/5 is closer to 4

Step-by-step explanation:  one is closer on the number scale then the other

3 0
2 years ago
If Jeremy is in the 90th percentile in the main office test scores is 180 with a standard deviation of 15 which of the following
Alika [10]
199. 

the z score for the 90th percentile is 1.28, so you can solve the equation

\frac{x-180}{15} = 1.28

which gets you the 199
4 0
2 years ago
A documentary is a film that
DanielleElmas [232]

Answer:

1. the answer is nonfictional story about a person, topic, or event

Step-by-step explanation:

hope this helps

3 0
2 years ago
Please helpp!
Kitty [74]

Answer:

it may be B but I think it's C

Step-by-step explanation:

not sure if this is right, but I would say not congruent. it may be sas but in order for it to be sas then the Angle must be in-between the two congruent sides

5 0
2 years ago
Harley is on a trip with her dad. Her dad tells her that they've traveled 182.6 miles and they are 83% of the way to their desti
Natali5045456 [20]
0.83x=182.6

x=182.6/0.83

x=220 miles total trip length.
8 0
3 years ago
Other questions:
  • Find all values of x that satisfy the equation
    6·1 answer
  • Pls help I will mark brainlist if correct!! :) choose an answer for part A and B
    9·1 answer
  • WILL GIVE BRAINLIEST!!!
    10·1 answer
  • Twice a number increased by 6
    15·2 answers
  • Will give Brainliest!!!
    15·1 answer
  • HELP PLEASE asap I behind
    7·1 answer
  • HELP ME PLZ !!!!!!!!
    12·1 answer
  • A stack of 500 pieces of paper is 1.9 inches tall. How thick is each piece of paper?
    12·1 answer
  • Answer number 31 and 32. For what value of x is the figure the given parallelogram?
    6·1 answer
  • When the stress on a rock in the mantle is greater than the rock is strong ________.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!